Could not translate host name “db” to address using Postgres, Docker Compose and Psycopg2

Question

In one folder I have 3 files: base.py, Dockerfile and docker-compose.yml.

base.py:

import psycopg2

conn = psycopg2.connect(\"dbname=\'b         


        

Answer 1

if you add this to your db container in your docker-compose.yml it should resolve the issue

environment:
  - "POSTGRES_HOST_AUTH_METHOD=trust"